JPH10246466A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner in which an air transferring type air conditioning operation for each of indoor areas can be performed positively through a rear area of a ceiling to attain a comfortable air conditioning even in the case that some beams are present at the rear area of the ceiling and duct installation work is hardly carried out. SOLUTION: This air conditioner is comprised of a main air conditioner 1 for blowing out cold or hot air to the rear area 2 of a ceiling of a chamber structure and a sub-air conditioner 15 having sub-dampers arranged at a ceiling side suction port 9 and an indoor side suction port 8. Cold or hot air at the rear area 2 of the ceiling and air in an indoor area 6 are sucked in well- balanced state and blown out into the indoor area 6, so that it is possible to attain a substantial constant volume of cold or hot air and blowing temperature without performing any duct work.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to one main air conditioner for blowing cold and hot air into the space above a ceiling and a plurality of sub air conditioners provided in each room so as to blow cold and hot air into each room.

[0002]

2. Description of the Related Art A conventional air conditioner of this type is disclosed in Japanese Patent Application Laid-Open No. 62-91742.

Hereinafter, the air conditioner will be described with reference to FIG. As shown in the drawing, a damper 104 controlled to be fully closed or fully opened provided for each room 103 via one air conditioner 101 and a duct 102.
And the room thermostat 1 installed in each room 103
05, the opening degree of the damper 104 selected by the switch 106 is proportionally adjusted according to the difference between the set room temperature and the room temperature, and the air volume from the outlet 107 is varied to control the room temperature. Was performed.

[0004]

In such a conventional air conditioner, it is very difficult to provide the duct 102 above the ceiling when there are beams above the ceiling or when the ceiling itself is narrow. Even in such a case, it is required that air conditioning can be reliably performed by air conveyance to each room 103.
In addition, when the room temperature reaches the set temperature, the damper 104 closes.
There is also a problem that wind noise is likely to be generated, and when the room temperature changes due to a change in indoor heat load, the air outlet 1
There is also a problem that discomfort is likely to occur because the air volume from 07 repeats increasing and decreasing, and it is required that the air volume blown into the room is constant even if the room temperature changes.

[0005] The present invention is to solve such a conventional problem, and even when there is a beam above the ceiling or when the ceiling itself is narrow, air conditioning can be reliably performed by air transfer to each room. It is an object of the present invention to provide an air conditioner that maintains the air volume blown into a room substantially constant even when the room temperature changes, and that is free from abnormal wind noise.

[0006]

In order to achieve the above object, the air conditioner of the present invention comprises a heat exchanger and a main blower for blowing cold and hot air into the space above the ceiling, which is an airtight and heat insulating chamber. A configuration including a main air conditioner, a sub air conditioner having a sub air blower inside a main body provided with an indoor side discharge port and an indoor side suction port communicating with a room, and a ceiling side suction port communicating with a space above the ceiling. It is what it was.

According to the present invention, it is possible to provide an air conditioner that does not require duct construction and does not have abnormal wind noise even when the temperature reaches a set temperature.

Another means is that, in addition to the above arrangement, a main damper provided to be able to open and close is provided at an indoor side discharge port, and a sub damper which is also provided to be able to open and close is provided at an indoor side suction port.

According to the present invention, even when the room temperature changes due to fluctuations in the thermal load in the room, the balance between the air above the ceiling and the air in the room is adjusted according to the size and the heat load of the room, so that it is almost constant. It is possible to provide an air conditioner that can obtain the amount of cold and hot air blown out.

Further, another means is such that the auxiliary damper is held at a predetermined angle by a signal from a temperature sensor provided at a discharge port on the indoor side of the auxiliary air conditioner.

According to the present invention, even when the room temperature changes, the sub-damper is maintained at a predetermined angle by the temperature sensor. An apparatus can be provided.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a main body of an air conditioner provided with an air-tightness and a heat insulating property, a ceiling back of a chamber structure, an outlet communicating with the ceiling back, a heat exchanger, and a main blower. A plurality of auxiliary air conditioners having a variable auxiliary air blower, wherein the auxiliary air conditioner has two locations: a ceiling-side suction port communicating with the space above the ceiling and an indoor-side suction port communicating with the room. A sub-damper having a suction port and an indoor-side discharge port opened to the interior of the room communicating with the outlet of the sub-blower, and a main damper provided to be openable and closable at the indoor-side discharge port; Is an air conditioner provided in the indoor-side suction port, and the sub air conditioner sucks cool and hot air behind the ceiling and indoor air and blows out the room, thereby blowing out a substantially constant amount of cold and hot air. Has the effect of obtaining That.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0014]

【Example】

(Embodiment 1) As shown in FIG. 1, a main air conditioner 1 is provided with a heat exchanger 3 for blowing cold and hot air into an underside of a ceiling 2, which is a chamber having airtightness and heat insulation, and a main blower 4. The main body 5 of the sub air conditioner 15 has an indoor discharge port 7 communicating with the indoor 6.
And a ceiling-side suction port 9 communicating with the inside of the ceiling 2, and a sub-blower 10 inside the main body 5.
, And the indoor-side suction port 8 and the ceiling-side suction port 9 join at the common ventilation path 11.

A ventilation port 16 is provided between each room 6 and communicates with a suction port 17 of the main air conditioner 1.
Further, when the temperature reaches the set temperature of the thermostat 18 provided in the room 6, the sub-blower 10 is stopped.

With the above configuration, since the entire ceiling 2 serves as a duct in the conventional example, air-conditioning can be performed by air conveyance even when the ceiling 2 has a beam or the ceiling 2 itself is narrow. Not only that, the auxiliary air conditioner 15 is provided on the ceiling of each room to convey the hot and cold air generated by the main air conditioner 1 with a required air volume. There is no need to keep the pressure. Accordingly, the required power of the main blower 4 is reduced, the blow noise is reduced, and the airtightness and heat insulation of the ceiling ceiling 2 are slightly disadvantageous (such as air leakage and heat insulation failure).
Even if there is, it will be corrected to a level that does not hinder practical use.

When the room temperature reaches the set temperature of the thermostat 18, the air path was conventionally blocked by a damper. It was easy to generate an abnormal sound (shoe whine). However, in this configuration, the introduction of the conditioned air is stopped by stopping the sub-blower, so that there is no remarkable change in the flow velocity at the outlet, so that it is possible to eliminate abnormal wind noise.

(Embodiment 2) As shown in FIGS. 1 and 2, in addition to the configuration of the above-described embodiment 1, a main damper 12 which can be opened and closed is provided at an indoor side discharge port 7, and an indoor side suction port 8 is provided at an indoor side suction port 8. An openable / closable sub damper 13 capable of adjusting the air volume of the indoor side suction port 8 is provided. And the ventilation port 16 is provided between each room 6, respectively, and communicates with the suction port 17 of the main air conditioner 1. Further, when the room temperature reaches the set temperature of the thermostat 18 provided in the room 6, the respective damper driving motors 19A and 19B are driven so that the main damper 12 and the sub damper 13 are closed.

With the above-described configuration, for example, when the room is large during heating, the sub damper 13 is set to be closed slightly, and the common ventilation passage 11 of the sub air conditioner 15
When the room is small, the sub-damper 13 is set to be slightly open, and the high-temperature air above the ceiling 2 in the shared ventilation passage 11 of the sub-air conditioner 15 is set. By adjusting so as to take in more air in the room 6 than in the room 6, it is possible to obtain warm air having a substantially constant flow rate and a high temperature.

Similarly, when the room is large during cooling, if the room is large, the sub-damper 13 is closed and set slightly, and the low temperature air behind the ceiling 2 is supplied to the common ventilation passage 11 of the sub-air conditioner 15. By taking in more air than the air, and when the room is small, the auxiliary damper 13 is set to be slightly open, and the common air passage 11 of the sub air conditioner 15 is adjusted to take in more air in the room 6 with a higher temperature. This makes it possible to obtain cold air having a substantially constant flow rate and a constant flow rate.

In this embodiment, the motor 19B for driving the damper is used to set the degree of opening of the sub-damper 13. However, if the fluctuation of the heat load can be determined uniquely by the size of the room, the opening of the sub-damper 13 is set. Needless to say, the degree may be manually set in advance according to the size of the room 6 at the time of construction.

(Embodiment 3) As shown in FIGS. 1 and 3, a temperature sensor 14 for measuring a blow-out temperature is provided at the indoor outlet 7 of the sub air conditioner 15, and blow-out is performed by a signal from the temperature sensor 14. The opening and closing angle of the sub damper 13 is automatically adjusted by the motor 19B so as to keep the temperature constant.

In the above configuration, for example, during heating, if the blow-out temperature of the indoor outlet 7 is lower than the set temperature, the sub damper 13 is closed and the sub air conditioner 1 is closed.
5, the air in the room 6 is taken in less than the air in the back of the ceiling 2 having a higher temperature, and when the blowing temperature is higher than the set temperature, the sub damper 13 is opened slightly. Shared ventilation path 1 for sub air conditioner 15
By adjusting so that the air in the room 6 is taken in more than the air in the back of the ceiling 2 having a higher temperature, warm air having a substantially constant flow rate and a higher temperature can be obtained.

Similarly, if the blow-out temperature is higher than the set temperature during cooling, the sub-damper 13 is closed and the common air passage 11 of the sub-air conditioner 15 closes the low temperature air above the ceiling 2. When the blow-out temperature is lower than the set temperature, the auxiliary damper 13 is opened slightly, and the low-temperature ceiling is provided in the shared ventilation passage 11 of the auxiliary air conditioner 15. By adjusting so that the air in the room 6 is taken in more than the air in the back 2, it is possible to obtain cold air in which the amount and temperature of air blown into the room 6 are almost constant.

In the embodiment, the sub damper 13 is provided at the indoor suction port 8. However, the same can be implemented by providing the sub damper 13 at the ceiling suction port 9, and it goes without saying that the effect is the same. No.

[0026]

As is clear from the above embodiments, according to the present invention, even when there is a beam behind the ceiling and no duct is provided, air conditioning to each room can be reliably performed through the inside of the ceiling. An effective air conditioner can be provided.

The sub air conditioner is provided with a main air conditioner that blows cold and hot air into the ceiling and a sub air conditioner that is provided with an openable and closable sub damper capable of adjusting the air volume at the indoor suction port. Air that has the effect of obtaining a constant air volume at almost constant temperature by adjusting the sub-damper according to the heat radiation behind the ceiling and the size of the room because it mixes the wind with the indoor air and blows it out into the room A harmony device can be provided.

In addition, a signal from a temperature sensor provided at the indoor outlet is used to hold the sub-damper at a predetermined angle so as to maintain a constant blowing temperature. It is possible to provide an air conditioner having an effect that there is no unpleasant sensation such as a change in the amount of air, and there is an almost constant amount of cold and hot air to be blown out and comfortable air conditioning can be performed.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating an overall configuration of an air conditioner according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing a configuration of a sub air conditioner of the air conditioner according to the second embodiment.

FIG. 3 is a sectional view showing a configuration of a sub air conditioner of the air conditioner according to the third embodiment.

FIG. 4 is a cross-sectional view showing the overall configuration of a conventional air conditioner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main air conditioner 2 Above ceiling 3 Heat exchanger 4 Main blower 5 Main unit 6 Indoor 7 Indoor side discharge port 8 Indoor side suction port 9 Ceiling side suction port 10 Sub-blower 11 Shared ventilation path 12 Main damper 13 Sub-damper 14 Temperature sensor 15 Sub air conditioner

Claims (3)

[Claims] 1. A ceiling air space having a chamber structure having airtightness and heat insulation, a main air conditioner having an air outlet, a heat exchanger, and a main air blower communicating with the ceiling air space, The auxiliary air conditioner includes a plurality of auxiliary air conditioners having a blower, and the auxiliary air conditioner has two intake ports, a ceiling-side intake port communicating with the space above the ceiling and an indoor-side intake port communicating with the room. An air conditioner comprising: a room-side discharge port that communicates with the outlet of the sub-blower and opens into the room. 2. The air conditioner according to claim 1, wherein a main damper provided to be freely openable and closable is provided at a discharge port on the indoor side, and a sub damper also provided to be openable and closable is provided at a suction port on the indoor side. 3. A temperature sensor is provided near a discharge port on the indoor side,
The air conditioner according to claim 2, wherein the sub damper is held at a predetermined angle by a signal output from the temperature sensor.